---
title: "Plumb Tub — £47K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/plumb-tub"
last_updated: "2026-07-31T18:22:13.451Z"
locale: en
meta:
description: "Niche score 28/100 · £47K/yr market · 34K searches/yr · £9.56 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 28/100 · £47K/yr market · 34K searches/yr · £9.56 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Plumb Tub — £47K/yr Amazon UK Niche (2026) - Flapen"
---
# **plumb tub**
**Skip it**
Soft demand (-50.6% this quarter) — this niche doesn't clear our bar today.
Market size 12Growth 0Conversion 96Competition 0Returns 97Price range 0Avg price 30Brand share 0Review moat 61Quality gap 25
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.4%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****1,049.5**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****£9.56**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****£47K**
£47K/yr · 34K searches
**Growth**
**Bad****-50.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****£8.27–£11.09**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, plumb tub is a £47K/yr Amazon United Kingdom market (34K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Oct–Nov. Verdict: Skip it — 28/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **plumb tub market data**
- **Units sold / yr**
- **3K–4K**
- avg 500–750/product
- **Revenue / yr**
- **£29K–£38K**
- units × avg price
- **Conversion rate**
- **14.4%**
- **Avg BSR**
- **#70**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **13.2%**
- **Avg brand age**
- **57 months**
- **Avg seller age**
- **188 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**13**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- Todays Tools39% - SPI36% - Heatlab20% - LavaTap5% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 86 weeks — -50.6% search growth over the last 90 days.
1K750Spike '25 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Feb, Oct, Nov · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/plumb-tub/trend)
## **Top plumb tub search terms**
- **plumb tub**18K/yr-48.5%12.1% conv. - **radiator drain tray**8K/yr-54.7%11.1% conv. - **radiator bucket**3K/yr-49.4%10.2% conv. - **radiator water catcher**5K/yr-53.3%6.8% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/plumb-tub/search-terms)
## **Top plumb tub products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%£5K20%£9K30%£14K40%£19K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 4 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Todays Tools Plumb Tub**Todays Tools**£8.27**4.7★2,492 rev](https://www.amazon.co.uk/dp/B00BVZYCX4) [2**Plumb Tub - SPI Radiator Draining Tub - Supplied in SPI Green**SPI**£9.25**4.7★1,402 rev](https://www.amazon.co.uk/dp/B01MT141UC) [3**Heatlab UK Ultimate Plumb Tub 2.0 XL High Capacity Plumbers Tub**Heatlab**£11.09**4.5★225 rev](https://www.amazon.co.uk/dp/B0DHVMFR4B) [4**LavaTap Plumb Tub Flexible Radiator Drain Tray Plumbers Bucket & Water Catcher for Pipe Work | Plumbing Tools Bleeding Kit Radiator Maintenance Tool**LavaTap**£9.64**4.5★79 rev](https://www.amazon.co.uk/dp/B0F7XVV9Z6)
### **Newest**
by launch date
[**LavaTap Plumb Tub Flexible Radiator Drain Tray Plumbers Bucket & Water Catcher for Pipe Work | Plumbing Tools Bleeding Kit Radiator Maintenance Tool**LavaTap**£9.64**79 rev1y ago](https://www.amazon.co.uk/dp/B0F7XVV9Z6) [**Heatlab UK Ultimate Plumb Tub 2.0 XL High Capacity Plumbers Tub**Heatlab**£11.09**225 rev1y ago](https://www.amazon.co.uk/dp/B0DHVMFR4B) [**Todays Tools Plumb Tub**Todays Tools**£8.27**2,492 rev5y ago](https://www.amazon.co.uk/dp/B00BVZYCX4) [**Plumb Tub - SPI Radiator Draining Tub - Supplied in SPI Green**SPI**£9.25**1,402 rev9y ago](https://www.amazon.co.uk/dp/B01MT141UC)
### **Trending**
90-day click momentum
[**Todays Tools Plumb Tub**Todays Tools**£8.27**4.7★**▲ 29%**](https://www.amazon.co.uk/dp/B00BVZYCX4) [**Heatlab UK Ultimate Plumb Tub 2.0 XL High Capacity Plumbers Tub**Heatlab**£11.09**4.5★**▲ 26%**](https://www.amazon.co.uk/dp/B0DHVMFR4B) [**Plumb Tub - SPI Radiator Draining Tub - Supplied in SPI Green**SPI**£9.25**4.7★**▼ 10%**](https://www.amazon.co.uk/dp/B01MT141UC) [**LavaTap Plumb Tub Flexible Radiator Drain Tray Plumbers Bucket & Water Catcher for Pipe Work | Plumbing Tools Bleeding Kit Radiator Maintenance Tool**LavaTap**£9.64**4.5★**▼ 64%**](https://www.amazon.co.uk/dp/B0F7XVV9Z6)
## **What buyers say about plumb tub**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**24%
*“Easy to use”*
**Quality-Overall**21%
*“Excellent product”*
**Value For Money**14%
*“Good value product”*
**Advertised Vs Actual Product**14%
*“Does the job”*
**Leak-Proof**7%
*“Best for small leaks”*
**Storage Capacity**3%
*“a good two litres capacity”*
**Size-Overall**3%
*“Fits snugly around the pipe”*
**Durability**2%
*“Really good product, wish I had bought one years ago, durable and fitted perfectly around the pipe”*
**Flexibility**2%
*“Incredibly flexible and suitable for a range of radiator pipes”*
**Efficiency**2%
*“Works surprisingly well”*
### **What buyers complain about **
**Leak-Proof**40%
*“Water leak that help with item”*
**Strength**30%
*“rather flimsy so don't over fill it”*
**Size-Overall**20%
*“Too small”*
### **Top return reasons **
**Size-Overall**30%
**Compatibility-Overall**16%
**Strength**12%
**Functionality-Overall**10%
**Advertised Vs Actual Product**8%
**Quality-Overall**4%
**Water Resistance**4%
**Defective Material/Parts**4%
**Maintenance And Repair**4%
**Leak-Proof**4%
## **Common questions**
- **Is plumb tub profitable to sell on Amazon United Kingdom?**
- The niche generates £47K/yr across 4 tracked products. 90-day search growth is -50.6%. Flapen's verdict: Skip it (28/100).
- **How competitive is the plumb tub niche?**
- 4 brands and 13 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in plumb tub?**
- Top complaints mined from reviews: Leak-Proof, Strength, Size-Overall. The return rate is 0.5%.
- **When does demand for plumb tub peak?**
- Demand peaks in Jan–Feb–Oct–Nov; the busiest month runs 3.1× the quietest.
- **What does it cost to enter the plumb tub niche?**
- Listings span £8.27–£11.09; the average listing price is £9.56 (sweet spot $15–$100). The average incumbent carries 1,050 reviews — the moat a new listing must climb.
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